The goal of this course is to underline the existing relations, between graphic and analytic representation, by a contemporary approach to the disciplines of drawing and mathematics. The graphic construction of a curve with ruler and compass will be followed by the analytical representation with parametric ad cartesian equations. Then the construction of historical drawing instruments will follow. The interdisciplinary goals of this course are: develop the attitude of students to understand and foresee the features of a figurative project on a two-dimensional support, from the beginning of its initial representation; provide scientific and cultural basis to handle digital modelling; strengthen their ability to integrate knowledge coming from different disciplines.